National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Caldwell, Essex County Airport (KCDW)

Lat: 40.88°NLon: 74.28°WElev: 171ft.

Fog/Mist

54°F

12°C

Humidity 97%
Wind Speed Calm
Barometer 30.05 in (1018.1 mb)
Dewpoint 53°F (12°C)
Visibility 4.00 mi
Last update 18 Apr 4:53 am EDT
Extended Forecast for

Mahwah NJ

  • Today

    Today: Mostly sunny, with a high near 67. Calm wind becoming southeast 5 to 8 mph in the morning.

    High: 67 °F

    Mostly Sunny

  • Tonight

    Tonight: Showers likely, mainly after 5am. Patchy fog after 2am. Otherwise, increasing clouds, with a low around 48. Southeast wind 5 to 8 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 48 °F

    Slight Chance
    Showers then
    Showers
    Likely and
    Patchy Fog

  • Sunday

    Sunday: Showers. Patchy fog before 8am. Steady temperature around 49. Light northwest wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 24 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 49 °F

    Showers and
    Patchy Fog

  • Sunday Night

    Sunday Night: Showers likely before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 36. Northwest wind around 6 mph. Chance of precipitation is 60%.

    Low: 36 °F

    Showers
    Likely then
    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 49. Northwest wind 7 to 9 mph, with gusts as high as 20 mph.

    High: 49 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 29.

    Low: 29 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 53.

    High: 53 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 41.

    Low: 41 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 63.

    High: 63 °F

    Partly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 67. Calm wind becoming southeast 5 to 8 mph in the morning.
Tonight
Showers likely, mainly after 5am. Patchy fog after 2am. Otherwise, increasing clouds, with a low around 48. Southeast wind 5 to 8 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday
Showers. Patchy fog before 8am. Steady temperature around 49. Light northwest wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 24 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Sunday Night
Showers likely before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 36. Northwest wind around 6 mph. Chance of precipitation is 60%.
Monday
Mostly sunny, with a high near 49. Northwest wind 7 to 9 mph, with gusts as high as 20 mph.
Monday Night
Mostly clear, with a low around 29.
Tuesday
Sunny, with a high near 53.
Tuesday Night
Mostly cloudy, with a low around 41.
Wednesday
Partly sunny, with a high near 63.
Wednesday Night
Partly cloudy, with a low around 41.
Thursday
Sunny, with a high near 68.
Thursday Night
Partly cloudy, with a low around 46.
Friday
Mostly sunny, with a high near 68.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mahwah NJ
 41.09°N 74.2°W (Elev. 751 ft)
Last Update:
5:23 am EDT Apr 18, 2026
Forecast Valid:
5am EDT Apr 18, 2026-6pm EDT Apr 24, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation